apk21n角座阀 apk21d-15bl-50 apk21d-15bf-63 apk21d不锈钢角座阀 apk21d角座阀apk21d-15b角座阀 apk21d-15b不锈钢角座阀角座阀 apk21n-15bl-50 apk21n-15bf-63apk21d-20bl-50 apk21d-20bf-63 apk21n-20bl-50 apk21n-20bf-63apk21d-25bl-50 apk21d-25bf-63 apk21n-25bl-50 apk21n-25bf-63apk21d-32bl-63 apk21d-32bf-63 apk21n-32bl-63 apk21n-32bf-63apk21d-32bl-100 apk21d-32bf-100 apk21n-32bl-100 apk21n-32bf-100apk21d-40bl-63 apk21d-40bf-63 apk21n-40bl-63 apk21n-40bf-63apk21d-40bl-100 apk21d-40bf-100 apk21n-40bl-100 apk21n-40bf-100apk21d-50bl-125 apk21d-50bf-125 apk21n-50bl-125 apk21n-50bf-125apk21d-65bl-125 apk21d-65bf-125 apk21n-65bl-125 apk21n-65bf-125apk21d-15sl-50 apk21d-15sf-63角座阀保持流速能够节省空间.它采用带弹簧安全保护的单作用气动执行机构来操作的导向角座阀.使用时,应该选择常开或常闭。产品由不锈钢铸造和聚四氟乙烯.可用于大多数气体,液体.蒸汽和腐蚀性场合.它带有散热器来保护执行机构.确保阀具有较长寿命.角座阀的原理及技术参数: 单作用和双作用单作用(气动头通常为一个孔);工作原理;根据弹簧复位达到开启和关闭的作用,分为常开型与常闭型。双作用(气动头通常为两个孔);工作原理:给气控制其开关。(根据客户要求,还可以选双作用加弹簧复位,控制更精准)